CN210548975U - Size-adjustable pipe penetrating plug surface laser cladding strengthening tool clamp - Google Patents

Abstract

The utility model discloses a size-adjustable pipe penetrating plug surface laser cladding strengthening tool clamp, which comprises a bottom plate, a fixed supporting part and a movable supporting part, wherein the fixed supporting part and the movable supporting part are respectively and fixedly arranged at two ends of the top of the bottom plate; the fixed supporting part comprises a fixed seat, a first rotating rod, a first motor, a first sliding seat, a first supporting wheel and a second motor; the movable supporting part comprises a movable seat, a second rotating rod, a third motor, a second sliding seat, a second supporting wheel and an air cylinder. The utility model discloses be used for wearing pipe top surface laser cladding among the prior art to reinforce frock clamp commonality poor, can not adjust according to the big or small size of poling top, the technical problem such as the production and processing cost that has increased the poling top improves, the utility model has the advantages of commonality is strong, reduce the production and processing cost of poling top.

Description

Size-adjustable pipe penetrating plug surface laser cladding strengthening tool clamp

Technical Field

The utility model relates to a poling top technical field especially relates to a poling top surface laser cladding of adjustable size reinforces frock clamp.

Background

The pipe penetrating plug is a key tool in seamless steel pipe production, the quality of the pipe penetrating plug is good, the length of the service life of the pipe penetrating plug directly influences the yield and quality of the steel pipe production and the economic benefit of enterprises, in the hot rolling production of seamless steel pipes, the temperature of the plug is as high as about 1000 ℃, the plug not only needs to bear strong axial pressure, but also needs to overcome strong deformation friction force generated between the plug and the inner wall of a capillary pipe, and therefore, the quality improvement of the plug is of great importance. In the prior art, a strengthening layer is generally arranged on the outer surface of a piercing point by a laser cladding technology, the laser cladding technology is a process method that a selected coating material is placed on the surface of a coated substrate in different filling modes, the coating material is simultaneously melted with a thin layer on the surface of the substrate by laser irradiation, and the coating material is rapidly solidified to form a surface coating which has extremely low dilution and is metallurgically combined with the substrate material, so that the wear resistance, corrosion resistance, heat resistance, oxidation resistance, electrical appliance characteristics and the like of the surface of the substrate material are obviously improved, and the piercing point needs to be placed on a tool clamp when the outer surface of the piercing point is subjected to laser cladding.

The existing tool clamp for laser cladding of the pipe penetrating head adopts four wheels, and the supporting wheels are symmetrically formed, so that the pipe penetrating head is supported, the laser cladding strengthening is performed on the surface of the pipe penetrating head by workers, but the positions of the rollers in the existing clamp cannot be adjusted, and because the shaft diameter and the length ruler of the pipe penetrating head are different, the tool clamp with different sizes is required to support the pipe penetrating head, the universality of the tool clamp is poor, and the production and processing cost of the pipe penetrating head is increased.

To above technical problem, the utility model discloses a wear pipe top surface laser cladding of adjustable size reinforces frock clamp, the utility model has the advantages of the commonality is strong, reduce the production and processing cost of wear pipe top.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a frock clamp is reinforceed in poling top surface laser cladding of adjustable size to it is poor to be used for among the solution prior art to poling top surface laser cladding intensive frock clamp commonality, can not adjust according to the size of a dimension of poling top, thereby has increaseed technical problem such as the production and processing cost of poling top, the utility model has the advantages of the commonality is strong, reduce the processing cost of poling top.

The utility model discloses a following technical scheme realizes: the utility model discloses a size-adjustable pipe penetrating plug surface laser cladding strengthening tool clamp, which comprises a bottom plate, a fixed supporting part and a movable supporting part, wherein the fixed supporting part and the movable supporting part are respectively and fixedly arranged at two ends of the top of the bottom plate; the fixed supporting part comprises a fixed seat, a first rotating rod, a first motor, a first sliding seat, a first supporting wheel and a second motor, the fixed seat is fixedly arranged at the top end of the bottom plate, a first mounting groove is formed in the middle of the top end of the fixed seat, the first rotating rod is rotatably arranged in the first mounting groove, one end of the first rotating rod penetrates through the side wall of the end part of the fixed seat and is fixedly connected with a rotating shaft of the first motor, the first motor is fixedly arranged at the end part of the fixed seat through a first motor mounting seat, two ends of the first rotating rod are respectively provided with first threads in opposite directions, the first sliding seat is respectively sleeved at two ends of the first rotating rod through the first threads and is connected with the fixed seat in a sliding manner, the first supporting wheel is rotatably arranged at the top end of the first sliding seat through a transmission shaft, one end of the transmission shaft penetrates through the side wall of the first, the second motor is fixedly arranged at the top end of the second motor mounting seat, a driving wheel is fixedly sleeved at the end part of a rotating shaft of the second motor, and the driving wheel is in transmission connection with the driven wheel through a transmission part; the movable supporting part comprises a movable seat, a second rotating rod, a third motor, a second sliding seat, a second supporting wheel and a cylinder, the movable seat is slidably arranged at the top end of the bottom plate, a second mounting groove is formed in the middle of the movable seat, the second rotating rod is rotatably arranged in the second mounting groove, one end of the second rotating rod penetrates through the side wall of the end part of the movable seat and is fixedly connected with a rotating shaft of the third motor, the third motor is fixedly arranged at the end part of the movable seat through a third motor mounting seat, two ends of the second rotating rod are respectively provided with second threads in opposite directions, the second sliding seat is respectively sleeved at two ends of the second rotating rod through the second threads, and the second slide and sliding connection of sliding seat, second supporting wheel rotate and install on the top of second slide, and the one side that the sliding seat is relative with the fixing base is provided with the cylinder, and both ends around cylinder fixed mounting is at the bottom plate top, the piston rod tip of cylinder and the lateral wall fixed connection of sliding seat.

Further, for the transmission between better realization second motor and the first supporting roller to better drive the poling top and rotate, follow driving wheel and action wheel and be the gear, the driving medium is the chain.

Further, for the transmission between better realization second motor and the first supporting roller to better drive the poling top and rotate, be the belt pulley from driving wheel and action wheel, the driving medium is the belt.

Further, for the sliding connection between better realization sliding seat and the bottom plate, both ends all are provided with first slider around the sliding seat bottom, and both ends homogeneous phase is run from opposite directions and is equipped with first spout around the bottom plate top, and first slider is located first spout.

Further, for the sliding connection between first slide and the fixing base and the sliding connection between second slide and the sliding seat of better realization, both ends are equallyd divide and do not are provided with the second slider about first slide and second slide bottom, and the second spout has respectively been seted up to both ends about fixing base and the sliding seat top, and the second slider is located the second spout.

Further, in order to improve the accuracy of regulation, the distance that two first supporting wheels of messenger fixed stay portion and two second supporting wheels of movable supporting part were adjusted keeps unanimous, makes two first supporting wheels and two second supporting wheels carry out better support to the poling top, and the lateral wall of fixing base and movable seat all is provided with the scale mark, and the lateral part of first slide and second slide is provided with the pointer respectively, and the pointer is located the outside of scale mark. During operation, drive first dwang through first motor and rotate the distance of adjusting between two first supporting wheels, drive the second dwang through the third motor and rotate the distance of adjusting between two second supporting wheels, during the adjustment, the adjusting distance of two first supporting wheels and two second supporting wheels of position indication through the pointer on the scale mark to make the adjusting distance of two first supporting wheels and two second supporting wheels keep unanimous, make two first supporting wheels and two second supporting wheels carry out better support to the top of perforating a pipe.

Further, for the shock attenuation effect that improves frock clamp, the vibrations that the during operation produced are cushioned to carry out better protection to frock clamp, improve frock clamp's life, the equal fixed mounting in four turnings of bottom plate bottom has the pad foot, and the bottom of pad foot is provided with the shock pad, and the shock pad adopts rubber materials or polyurethane material to make.

The utility model has the advantages of it is following: the utility model discloses a both ends at the bottom plate top set up fixed support portion and movable support portion respectively, distance between movable support portion and the fixed support portion can be adjusted according to the length of poling top, and simultaneously, distance between two first supporting wheels of fixed support portion and two second supporting wheels of movable support portion can be adjusted according to the diameter of axle of poling top, thereby the commonality of poling top has been improved, the surface laser cladding that can carry out the poling top of equidimension not reinforces through a frock clamp, the production and processing cost of poling top has been reduced.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a fixing base;

FIG. 3 is a schematic view of a first rotating rod;

FIG. 4 is a schematic view of a first carriage, a first support wheel and a second motor mounting structure;

FIG. 5 is a schematic view of a movable seat;

fig. 6 is a schematic structural view of a second rotating rod;

fig. 7 is a structural diagram of a second carriage.

Detailed Description

The following embodiments of the present invention are described in detail, and the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the protection scope of the present invention is not limited to the following embodiments, and in the description of the present invention, the terms of the directions or position relationships of the indications such as "front", "back", "left", "right", etc. are only used for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention.

Example 1

Embodiment 1 discloses a size-adjustable pipe penetrating plug surface laser cladding strengthening tool fixture, as shown in fig. 1, which includes a bottom plate 1, a fixed support part 2 and a movable support part 3, the fixed support part 2 and the movable support part 3 are respectively and fixedly installed at the left and right ends of the top of the bottom plate 1, four corners of the bottom end of the bottom plate 1 are all fixedly installed with pad feet 11, the bottom end of the pad feet 11 is provided with a shock pad 111, the shock pad 111 is made of rubber materials, the fixed support part 2 includes a fixed seat 21, a first rotating rod 22, a first motor 23, a first sliding seat 24, a first supporting wheel 25 and a second motor 26, the model of the first motor 23 is 80AEA07530-SC3, the model of the second motor 26 is sepr 27, and the fixed seat 21 is fixedly installed at the top end of the bottom plate 1; as shown in fig. 2, a first mounting groove 211 is formed in the middle of the top end of the fixing base 21; as shown in fig. 1, the first rotating rod 22 is rotatably installed in the first installation groove 211, specifically, first bearings (not shown in the figure) are respectively disposed between two ends of the first rotating rod 22 and the front end and the rear end of the fixed seat 21, one end of the first rotating rod 22 penetrates through a side wall of an end portion of the fixed seat 21 and is fixedly connected with a rotating shaft of the first motor 23, specifically, an end portion of the first rotating rod 22 is fixedly connected with a rotating shaft of the first motor 23 through a first coupler (not shown in the figure), the first motor 23 is fixedly installed at an end portion of the fixed seat 21 through the first motor installation seat 4, and a first reinforcing rib (not shown in the figure) is disposed between a bottom of the first motor installation seat 4 and a side wall of the bottom plate 1; as shown in fig. 3, the two ends of the first rotating rod 22 are respectively provided with first threads 221 in opposite directions; as shown in fig. 1, the first slide 24 is respectively sleeved at two ends of the first rotating rod 22 through a first thread 221, and the first slide 24 is slidably connected with the fixed seat 21, the first supporting wheel 25 is rotatably mounted at the top end of the first slide 24 through the transmission shaft 5, specifically, a second bearing (not marked in the figure) is arranged between the transmission shaft 5 and two side walls of the first slide 24, one end of the transmission shaft 5 penetrates through the side wall of the first slide 24 and is fixedly sleeved with the driven wheel 51, the side part of the first slide 24 is fixedly connected with the second motor mounting seat 6, the second motor mounting seat 6 is integrally formed with the first slide 24 or the second motor mounting seat 6 is welded and fixed at the side part of the first slide 24, and the second motor 26 is fixedly mounted at the top end of the second motor mounting seat 6; as shown in fig. 4, a driving wheel 261 is fixedly sleeved at the end of the rotating shaft of the second motor 26, the driving wheel 261 is in transmission connection with a driven wheel 51 through a transmission member 7, the driven wheel 51 and the driving wheel 261 are both gears, the transmission member 7 is a chain, and the chain is connected between the driving wheel 261 and the driven wheel 51; as shown in fig. 1, the movable supporting portion 3 includes a movable seat 31, a second rotating rod 32, a third motor 33, a second sliding seat 34, a second supporting wheel 35 and an air cylinder 36, the model of the third motor 33 is 80AEA07530-SC3, the model of the air cylinder 36 is SC63-500, and the movable seat 31 is slidably mounted at the top end of the bottom plate 1; as shown in fig. 5, the front end and the rear end of the bottom of the movable seat 31 are provided with first sliding blocks 311; as shown in fig. 1, the front end and the rear end of the top of the bottom plate 1 are both provided with a first sliding groove 12, and the first sliding block 311 is located in the first sliding groove 12; as shown in fig. 5, a second mounting groove 312 is formed in the middle of the movable seat 31; as shown in fig. 1, the second rotating rod 32 is rotatably installed in the second installation groove 312, specifically, third bearings (not shown) are respectively disposed between two ends of the second rotating rod 32 and the side walls of the front end and the rear end of the movable seat 31, one end of the second rotating rod 32 penetrates through the side wall of the end portion of the movable seat 31 and is fixedly connected with the rotating shaft of the third motor 33, specifically, the end portion of the second rotating rod 32 and the rotating shaft of the third motor 33 are fixedly connected through a second coupling (not shown), the third motor 33 is fixedly installed at the end portion of the movable seat 31 through the third motor installation seat 8, and a second reinforcing rib (not shown) is disposed between the bottom end of the third motor installation seat 8 and the side wall of the bottom plate; as shown in fig. 6, the two ends of the second rotating rod 32 are respectively provided with second threads 321 in opposite directions; as shown in fig. 1, the second sliding seat 34 is respectively sleeved at two ends of the second rotating rod 32 through a second thread 321, and the second sliding seat 34 is slidably connected with the movable seat 31, the second supporting wheel 35 is rotatably installed at the top end of the second sliding seat 34, specifically, the second supporting wheel 35 is fixedly sleeved on a rotating shaft (not labeled in the figure), fourth bearings (not labeled in the figure) are respectively arranged between two ends of the rotating shaft and two side walls of the second sliding seat 34, an air cylinder 36 is arranged at one side of the movable seat 31 opposite to the fixed seat 21, the air cylinder 36 is fixedly installed at front and rear ends of the top of the bottom plate 1, and the end of a piston rod of the air cylinder 36 is fixedly connected with the side wall of the movable seat 31; as shown in fig. 4 and 7, the left and right ends of the bottoms of the first slide 24 and the second slide 34 are respectively provided with a second slide 9; as shown in fig. 2 and 5, the left and right ends of the tops of the fixed seat 21 and the movable seat 31 are respectively provided with a second sliding chute 10, and the second sliding chutes 10 are respectively located at two sides of the first mounting groove 211 and two sides of the second mounting groove 312; as shown in fig. 1, the second sliding block 9 is located in the second sliding groove 10, the side walls of the fixed seat 21 and the movable seat 31 are both provided with scale marks 100, the side portions of the first sliding seat 24 and the second sliding seat 34 are respectively provided with pointers 101, and the pointers 101 are located outside the scale marks 100.

The working process of the utility model is as follows: when the surface of the pipe penetrating plug is subjected to laser cladding strengthening, firstly, the tool fixture is adjusted according to the size of the pipe penetrating plug, specifically, the distance between the movable supporting part 3 and the fixed supporting part 2 is adjusted according to the length of the pipe penetrating plug, and when the distance is adjusted, the distance between the movable supporting part 3 and the fixed supporting part 2 is adjusted by controlling the piston rod of the air cylinder 36 to contract or extend; according to the size of the shaft diameter of the pipe penetrating plug, the distance between the two first supporting wheels 25 and the distance between the two second supporting wheels 35 are adjusted, during adjustment, the first motor 23 drives the first rotating rod 22 to rotate, because the first threads 221 with opposite directions are arranged at the two ends of the first rotating rod 22, the two first sliding seats 24 can be driven to move oppositely or relatively by the rotation of the first rotating rod 22, so that the distance between the two first supporting wheels 25 is adjusted, the second rotating rod 32 is driven to rotate by the third motor 33, because the second threads 321 with opposite directions are arranged at the two ends of the second rotating rod 32, the two second sliding seats 34 can be driven to move oppositely or relatively by the rotation of the second rotating rod 32, so that the distance between the two second supporting wheels 36 is adjusted, after the adjustment is completed, the pipe penetrating plug is lifted by the lifting appliance and then placed at the top ends of the fixed supporting part 2 and the movable supporting part 3, support the poling top through two first supporting wheels 25 and two second supporting wheels 35, then start second motor 26, second motor 26 passes through action wheel 261 and follows the transmission between the driving wheel 51, it rotates to drive transmission shaft 5, it is rotatory to drive first supporting wheel 25 after transmission shaft 5 rotates, thereby it is rotatory to drive the poling top, can drive two second supporting wheels 35 rotatory after the poling top is rotatory, thereby realize the better rotation of poling top, be convenient for carry out laser cladding at the surface of poling top and reinforce. The utility model has the advantages of the commonality is strong, reduce the production and processing cost of poling top.

Example 2

Embodiment 2 discloses a size-adjustable laser cladding strengthening tool fixture for the surface of a pipe penetrating plug, which comprises a bottom plate 1, a fixed supporting part 2 and a movable supporting part 3, wherein the fixed supporting part 2 and the movable supporting part 3 are respectively and fixedly installed at two ends of the top of the bottom plate 1, four corners of the bottom end of the bottom plate 1 are respectively and fixedly provided with a pad 11, the bottom end of the pad 11 is provided with a shock pad 111, the shock pad 111 is made of polyurethane material, the fixed supporting part 2 comprises a fixed seat 21, a first rotating rod 22, a first motor 23, a first sliding seat 24, a first supporting wheel 25 and a second motor 26, the model of the first motor 23 is 80AEA07530-SC3, the model of the second motor 26 is SEWR27, the fixed seat 21 is fixedly installed at the top end of the bottom plate 1, the middle part of the top end of the fixed seat 21 is provided with a first installation groove 211, the first rotating rod 22, first bearings (not marked in the figure) are arranged between two ends of the first rotating rod 22 and the front end and the rear end of the fixed seat 21, one end of the first rotating rod 22 penetrates through the side wall of the end portion of the fixed seat 21 and is fixedly connected with a rotating shaft of the first motor 23, specifically, the end portion of the first rotating rod 22 is fixedly connected with the rotating shaft of the first motor 23 through a first coupler (not marked in the figure), the first motor 23 is fixedly installed at the end portion of the fixed seat 21 through a first motor installation seat 4, a first reinforcing rib (not marked in the figure) is arranged between the bottom of the first motor installation seat 4 and the side wall of the bottom plate 1, two ends of the first rotating rod 22 are respectively provided with first threads 221 in opposite directions, the first sliding seats 24 are respectively sleeved at two ends of the first rotating rod 22 through the first threads 221 and are slidably connected with the fixed seat 21, a first supporting wheel 25 is rotatably installed at the top end of the first sliding seats 24 through a transmission shaft 5, specifically, second bearings (not shown in the figures) are respectively arranged between two ends of the transmission shaft 5 and two side walls of the first sliding seat 24, a driven wheel 51 is fixedly sleeved at one end of the transmission shaft 5 through the side wall of the first sliding seat 24, a second motor mounting seat 6 is fixedly connected to the side portion of the first sliding seat 24, the second motor mounting seat 6 and the first sliding seat 24 are integrally formed or the second motor mounting seat 6 is welded and fixed to the side portion of the first sliding seat 24, the second motor 26 is fixedly mounted at the top end of the second motor mounting seat 6, a driving wheel 261 is fixedly sleeved at the rotating shaft end portion of the second motor 26, the driving wheel 261 is in transmission connection with the driven wheel 51 through a transmission piece 7, the driven wheel 51 and the driving wheel 261 are belt pulleys, the transmission piece 7 is a belt, and the belt is connected; the movable supporting portion 3 includes a movable seat 31, a second rotating rod 32, a third motor 33, a second sliding seat 34, a second supporting wheel 35 and an air cylinder 36, the model of the third motor 33 is 80AEA07530-SC3, the model of the air cylinder 36 is SC63-500, the movable seat 31 is slidably mounted at the top end of the bottom plate 1, the front end and the rear end of the bottom of the movable seat 31 are respectively provided with a first sliding block 311, the front end and the rear end of the top of the bottom plate 1 are respectively provided with a first sliding chute 12, the first sliding block 311 is located in the first sliding chute 12, the middle of the movable seat 31 is provided with a second mounting groove 312, the second rotating rod 32 is rotatably mounted in the second mounting groove 312, specifically, third bearings (not labeled in the figure) are respectively arranged between the two ends of the second rotating rod 32 and the side wall of the front end and the rear end of the movable seat 31, one end of the second rotating rod 32 penetrates through the side wall of the, specifically, an end of the second rotating rod 32 is fixedly connected to a rotating shaft of the third motor 33 through a second coupling (not shown in the figure), the third motor 33 is fixedly mounted at an end of the movable seat 31 through the third motor mounting seat 8, a second reinforcing rib (not shown in the figure) is disposed between a bottom end of the third motor mounting seat 8 and a side wall of the bottom plate, two ends of the second rotating rod 32 are respectively provided with second threads 321 in opposite directions, the second sliding seats 34 are respectively sleeved at two ends of the second rotating rod 32 through the second threads 321, the second sliding seats 34 are slidably connected to the movable seat 31, the second supporting wheel 35 is rotatably mounted at a top end of the second sliding seat 34, specifically, the second supporting wheel 35 is fixedly sleeved on the rotating shaft (not shown in the figure), fourth bearings (not shown in the figure) are disposed between two ends of the rotating shaft and two side walls of the second sliding seats 34, a cylinder 36 is disposed on a side of the movable seat 31 opposite to the fixed seat 21, the air cylinder 36 is fixedly installed at the front end and the rear end of the top of the bottom plate 1, and the end of a piston rod of the air cylinder 36 is fixedly connected with the side wall of the movable seat 31. First slide 24 and second slide 34 bottom both ends are equallyd divide and are provided with second slider 9 respectively about, second spout 10 has been seted up respectively to both ends about fixing base 21 and sliding seat 31 top, second spout 10 is located the both sides of first mounting groove 211 and the both sides of second mounting groove 312 respectively, second slider 9 is located second spout 10, the lateral wall of fixing base 21 and sliding seat 31 all is provided with scale mark 100, first slide 24 and second slide 34's lateral part is provided with pointer 101 respectively, pointer 101 is located scale mark 100's the outside.

The working process of the utility model is as follows: when the surface of the pipe penetrating plug is subjected to laser cladding strengthening, firstly, the tool fixture is adjusted according to the size of the pipe penetrating plug, specifically, the distance between the movable supporting part 3 and the fixed supporting part 2 is adjusted according to the length of the pipe penetrating plug, and when the distance is adjusted, the distance between the movable supporting part 3 and the fixed supporting part 2 is adjusted by controlling the piston rod of the air cylinder 36 to contract or extend; according to the size of the shaft diameter of the pipe penetrating plug, the distance between the two first supporting wheels 25 and the distance between the two second supporting wheels 35 are adjusted, during adjustment, the first motor 23 drives the first rotating rod 22 to rotate, because the first threads 221 with opposite directions are arranged at the two ends of the first rotating rod 22, the two first sliding seats 24 can be driven to move oppositely or relatively by the rotation of the first rotating rod 22, so that the distance between the two first supporting wheels 25 is adjusted, the second rotating rod 32 is driven to rotate by the third motor 33, because the second threads 321 with opposite directions are arranged at the two ends of the second rotating rod 32, the two second sliding seats 34 can be driven to move oppositely or relatively by the rotation of the second rotating rod 32, so that the distance between the two second supporting wheels 36 is adjusted, after the adjustment is completed, the pipe penetrating plug is lifted by the lifting appliance and then placed at the top ends of the fixed supporting part 2 and the movable supporting part 3, support the poling top through two first supporting wheels 25 and two second supporting wheels 35, then start second motor 26, second motor 26 passes through action wheel 261 and follows the transmission between the driving wheel 51, it rotates to drive transmission shaft 5, it is rotatory to drive first supporting wheel 25 after transmission shaft 5 rotates, thereby it is rotatory to drive the poling top, can drive two second supporting wheels 35 rotatory after the poling top is rotatory, thereby realize the better rotation of poling top, be convenient for carry out laser cladding at the surface of poling top and reinforce. The utility model has the advantages of the commonality is strong, reduce the production and processing cost of poling top.

Claims (7)

1. The size-adjustable laser cladding strengthening tool clamp for the surface of the pipe penetrating plug is characterized by comprising a bottom plate, a fixed supporting part and a movable supporting part, wherein the fixed supporting part and the movable supporting part are respectively and fixedly arranged at two ends of the top of the bottom plate;

the fixed supporting part comprises a fixed seat, a first rotating rod, a first motor, a first sliding seat, a first supporting wheel and a second motor, the fixed seat is fixedly arranged at the top end of the bottom plate, a first mounting groove is formed in the middle of the top end of the fixed seat, the first rotating rod is rotatably arranged in the first mounting groove, one end of the first rotating rod penetrates through the side wall of the end part of the fixed seat and is fixedly connected with the rotating shaft of the first motor, the first motor is fixedly arranged at the end part of the fixed seat through a first motor mounting seat, the two ends of the first rotating rod are respectively provided with first threads in opposite directions, the first sliding seat is respectively sleeved at the two ends of the first rotating rod through the first threads, the first sliding seat is in sliding connection with the fixed seat, and the first supporting wheel is rotatably arranged at the top end of the first sliding seat through a transmission shaft, one end of the transmission shaft penetrates through the side wall of the first sliding seat and is fixedly sleeved with a driven wheel, the side part of the first sliding seat is fixedly connected with a second motor mounting seat, the second motor is fixedly mounted at the top end of the second motor mounting seat, a driving wheel is fixedly sleeved at the end part of a rotating shaft of the second motor, and the driving wheel is in transmission connection with the driven wheel through a transmission part;

the movable supporting part comprises a movable seat, a second rotating rod, a third motor, a second sliding seat, a second supporting wheel and a cylinder, the movable seat is slidably mounted at the top end of the bottom plate, a second mounting groove is formed in the middle of the movable seat, the second rotating rod is rotatably mounted in the second mounting groove, one end of the second rotating rod penetrates through the side wall of the end part of the movable seat and is fixedly connected with the rotating shaft of the third motor, the third motor is fixedly mounted at the end part of the movable seat through a third motor mounting seat, the two ends of the second rotating rod are respectively provided with second threads with opposite directions, the second sliding seat is respectively sleeved at the two ends of the second rotating rod through the second threads, the second sliding seat is slidably connected with the movable seat, the second supporting wheel is rotatably mounted at the top end of the second sliding seat, and one side of the movable seat opposite to the fixing seat is provided with the cylinder, the air cylinder is fixedly arranged at the front end and the rear end of the top of the bottom plate, and the end part of a piston rod of the air cylinder is fixedly connected with the side wall of the movable seat.

2. The dimension-adjustable pipe penetrating plug surface laser cladding strengthening tool clamp of claim 1, wherein the driven wheel and the driving wheel are both gears, and the transmission part is a chain.

3. The dimension-adjustable pipe penetrating plug surface laser cladding strengthening tool clamp of claim 1, wherein the driven wheel and the driving wheel are both belt pulleys, and the transmission part is a belt.

4. The tool clamp for the laser cladding and strengthening of the surface of the pipe penetrating plug with the adjustable size as claimed in claim 1, wherein first sliding blocks are arranged at the front end and the rear end of the bottom of the movable seat, first sliding grooves are formed in the front end and the rear end of the top of the bottom plate in an opposite mode, and the first sliding blocks are located in the first sliding grooves.

5. The dimension-adjustable pipe penetrating plug surface laser cladding strengthening tool clamp of claim 1, wherein the left and right ends of the bottoms of the first sliding seat and the second sliding seat are respectively provided with a second sliding block, the left and right ends of the tops of the fixed seat and the movable seat are respectively provided with a second sliding groove, and the second sliding blocks are positioned in the second sliding grooves.

6. The tool clamp for laser cladding and strengthening the surface of the pipe penetrating plug with the adjustable size as claimed in claim 1, wherein the side walls of the fixed seat and the movable seat are provided with scale marks, and the side parts of the first sliding seat and the second sliding seat are respectively provided with a pointer, and the pointer is located outside the scale marks.

7. The tool clamp for the surface laser cladding and strengthening of the penetrating pipe top with the adjustable size of claim 1, wherein four corners of the bottom end of the bottom plate are fixedly provided with a pad foot, the bottom end of the pad foot is provided with a shock pad, and the shock pad is made of a rubber material or a polyurethane material.

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